hydantoic

[Eng. hydanto(in); -ic.] Chem. Of or belonging to hydantoin (q. v.). hydantoic-acid, s. Inorganic Chem.: Glycol uric acid, C7H8N2O3, or COH A monobasic acid, obtained by boiling hydantoin with baryta water; also by heating amido acetic acid with urea to 120°, or by heating amido acetic acid with isocyanate of pota ium and sulphuric acid. Hydantoic acid is nearly insoluble in cold water and in cold alcohol, but easily di olved by boiling water. It is only slightly soluble in ether. It forms large rhombic prisms.